Balenciaga speed trainers

Authentic balenciaga speed trainers. Purchased off eBay and was authenticated through them. Shoes will come with all the authentication stuff from eBay including dust bag. Shoes are size 38. Shoes are light gray and have signs of wear. I personally never wore them. I thought I would but I just wear my black ones over these all the time. So the shoes could be cleaned. There is a black mark on the top of the shoe I purchased that way and I never tried to clean it also I’m not sure what it is or if it can be cleaned. Bottom soles have wear as the knitting does. Still in good condition in my opinion. Please review all pictures and look over closely before purchasing. Any questions just ask